During the initial phase of a startup, my primary focus would be on acquisition efforts, as attracting a large customer base is vital for validating product-market fit. It's crucial to experiment with various marketing channels, offers, and business partnerships to determine what is most effective. However, as the business grows and develops, I would shift my attention to customer retention. Research has indicated that maintaining existing customers is often more cost-effective than acquiring new ones. Additionally, the lifetime value of customers tends to increase over time as they continue to engage with our product or service. For example, in my previous position, after we established that we had achieved product-market fit through high customer engagement and consistent user growth, we began to focus on incorporating retention features into our subscription model, such as loyalty programs and personalized experiences. These features were instrumental in enhancing the lifetime value of our customers.